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Configuring Basic Networking (Network Packets (When the recipient receives…
Configuring Basic Networking
Network Packets
If there is an error sending one packet, it can be sent again
When the recipient receives packets, it must reassemble
In the correct order
Error-recovery procedures are critical
Modern networks operate on discrete chunks of data known as packets
Several types of packets
Ethernet includes its own packet type (frame)
Network Protocol Stacks
Can take the commands of email transfer protocols and package them into packets
Each computer in a transaction requires a compatible protocol stack
Each component layer of the sending system is equivalent to a layer on the receiving system
Protocol stack
is a set of software that converts and encapsulates data between layers of abstraction
TCP/IP Protocol Types
TCP
Creates full connections with error checking and correction
Most widely used transport layer protocol
Transmission Control Protocol
Simplify creation of network protocols
Imposes small performance penalty
UDP
Faster than other tools
Simplest of the common trasport-layer
User Datagram Protocol
Doesn't provide procedures for out-of-order packets, guarantee delivery, etc.
ICMP
Internet Control Message Protocol
Simple, for communicating data
Used to send error messages between computers
IP
Core protocol of Internet
Provides "best effort" method for transferring packets
Internet Protocol
Packets may also arrive corrupted or out of order
Configuration
The precise details of how to configure a Linux system using GUI tools differ from one distribution to anotherçç
Liunux+ exam doesn't cover GUI network
Most distributions include their own GUI configuration tools